Extended 2 dimensional MMR Code is a kind of facsimile signal source code. Vertical relativity is utilized when MMR code is coded. In addition, there is no line synchronized code in MMR code. So when… (More)

In this paper a new approach is proposed to enhance images that inspired by adaptive global and local processing of the human visual system. The method first uses a principal component analysis to… (More)

PI/Al<sub>2</sub>O<sub>3</sub> films have been extensively studied due to its' excellent corona resistance. In this paper, a series of PI/Al<sub>2</sub>O<sub>3</sub> films with inorganic content of… (More)

Polyimide/nano-Al<inf>2</inf>O<inf>3</inf>composite films based on Pyromellitic diancompositee (PMDA) and 4,4'-Oxydianiline (ODA) were prepared by ultrasonic-mechanical method. Before addition,… (More)